Finding the Third Proportional to 9,993.66 and 21,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,993.66 : 21,499.88 = 21,499.88 : x
2. Step 2: Convert to fraction form
   9,993.66/21,499.88 = 21,499.88/x
3. Step 3: Cross multiply
   9,993.66x = 21,499.88 × 21,499.88
4. Step 4: Simplify right side
   9,993.66x = 462,244,625.02
5. Step 5: Solve for x
   x = 462,244,625.02/9,993.66
6. Step 6: Final answer
   x = 46,253.80